Sealing strip for roll top doors



March 26, 1935.

Filed Jan. 11, 1932 3 Sheets-Sheet l I THINK 4 r 1 f j O F t? i 6 6 v a 4 II E! III \\\\//4M| Ar R INVENTOR EDW/QIPD H. MCCLOUD.

BY O

ATTORNEY March 26, 1935. E. H. M CLOUD 1,995,431

SEALING STRIP FOR ROLL TOP DOORS 7 Filed Jan. 11, 1932 5 Sheets- Sheet 2 AA AA /4J l NVENTOR EDWARD H. McCLOl/D. BY

ATTORNEY March 26, 1935. E. H. MC

SEALING STRIP FORROLL TOP DOORS 3 Sheets-Sheet 3 Filed Jam. 11, 1932 12 INVENTOR EDWARD H. McCLOl/D.

ATTORNEY Patented Mar. 26, 1935 PATENT OFFICE 1,995,431 SEALING STRIP FOR ROLL TOP DOORS Edward H. McCloutLfColumbus, Ohio, assignor to The Kinnear Manufacturing Company, Golumbus, Ohio, a corporation of Ohio j Application January 11, 1932,1Serial No. 585,968 7 7 7 Claims. (01. 20-20) This invention relates to improvements in articulated roll top doors, and has for its object to provide, in connection with a door, means in the walls of a building adjacent the door to prevent 1 the formation of cracks and crevices between the door and the walls when the door is closed.

It is particularly the object of this invention to provide, in connection with a wall having on the door jambs and the'linteL'molding for en-'- gagement by the door when the door is closed, and cooperating with this molding and the door a strip for forming a substantially air-tight fit between the door and the molding.

While this improvement is particularly adapted to be used with'a'rticulated doors, it may be used with other ,formsof vertically moving doors. Referring to the drawings: 5 Figure. 1 is a vertical longitudinal section through a door and one wall of a building, showing the door in closed position. In this figure an old type of door and molding is shown.

In Figure 2 an inside elevation of the usual type of door is shown in closed position.

Figure 4 is a section on the line 4-4. of Figure 3. Figure 5 is aside elevation of one end of a door according to applicants improvement; In this figure the door is shown in fragmentary parts.

In Figure 6 a slightly modified form of door is shown from that shown in Figure 2.

Figure '7 shows another modification of the door used in combination with the other form shown in Figure 6. a, c Figure 8 is a section on the line 8-.8 of Figure 5.

Figure 9 is a section on the line 9-9 of Figure 8.

Figure 10 is a section on the line 10-10 of Figure 6. a Figure 11 is a section on the line 11-11 of Figure 10.

Figure 12 isan insiderview of the improved door showingin section the cooperating door and jamb structures. I

Figure 12A is a section on the line 12A-12A of Figure12.

Figure 123 is a section on the line 1237123 of Figure 12. g

Figure 120 is a section on the line 12C12C 50 of Figure 12. V

Figure 12D is a section on the line 12D-12D of Figure 12. r

Figure 12E is a section on the line 12E-12E of Figure 12.

In Figures 1 and 2 an old form of door is shown.

rollers are located at each side of the door and The object .of this invention is to provide, in

connection with the articulate door and wall structure shown in Figures 1 and 2, means to form a close fit between the door and the adjacent parts of the wall so that no air holes and vents are 5 allowed. V I The wall around the door opening is indicated by the numeral 1, and has'on each side-of the door opening and across the top, molding 2. On

each. side of the door opening, attached'to the 10 wall and extending horizontally from the wall above the door, are trackways 3, one on each side,

- extending parallel to the wall and terminating in a section that is substantially horizontal above the door opening. The door for closing the opening iscomposed of a plurality of sections 4, connected to one another by means of hinges 5. The door sections are supported and guided by means of rollers 6 in the trackways. These serve to guide the door sections from a closed position to an'open position and from an open to v V, a closed position. I Figure 3 is a section on the line 3-3 of Figure 7.

The trackways are supported on the adjacent wall by means of brackets 7, whichhave foot members 8 attached to the wall by means of bolts or screws 9. The tra'ckwaysare channel shaped,

with one side of the channel bent to formga groove in which the. rollers operate, as clearly shown in Figure 3. 30

In order to cooperate with the moldings 2 there is provided on the inside of the wall, adjacent the molding, strips 10,-one strip on each side of the doorway. The strips, as shown in Figure 3, extend partly over the moldings 2, forming with the moldings benches. The door is cut away on each edge to form a notch 11, to receive one edge of one of the strips, and in order thatthere may be a wedging action between the strips on opposite sides of the doorway and the door the upper .ends. of the strips 10 are narrower than the lower ends, so that the door may more readily enter as it descends to closing position between the two strips, and as the door descends it wedges between the two strips to form a close fit so there is a substantially air-tight'contact between. the

door and the adjacent strips and the adjacent moldings.

Figure 10 shows a section on the line 10 -10 of Fig'ure'6,'whi1e Figure 8 shows a section on 5 0 the line:-33 of Figure 7, which shows a part of the door used in connection with thepart shown in Figure 6. The door structure, as shown in Figuresfi and '7, involves a door and wedge- .shaped strip engaging one edge ofthe door, and 55 a spring-pressed strip engaging the opposite edge of the door so that when the door is lowered between the two strips its opposite edges are en gaged by the strips to form a tight sealing fit eiiected by the wedge-shaped strip and the springoperated strip. The upper end of the wedgeshaped strip being the thinnest, space is provided between the strips for theready entrance of the lower end of the dooras it is lowered to closing position.

By means of the joint structure between each edge of the door and the adjacent parts of the building any air passing in between the door and the jamb of the door passageway must make at least two angles before itcan enter. the building. The air must pass between the door and a piece of the molding, and between thedoor and the strip 10, on the edge of the strip, and between the door and the strip 10, on the side of :the strip. By this means there is a substantially air-tight fit between the door and the adjacent wall structure. The strips 10 are held in position with .relation to the wall of the building and the brackets 'I by means of a bracket 12, which is attached to a strip 10- and to the bracket 7. There are several of these brackets 7 and several of the brackets 12.

The line of contact between the door and one of the strips 10 is indicated by the numeral 13, as shown in Figure '7. The brokenline shown on the righthand side of Figure 7 indicates the line of contact between the door and the strip 10. This line'indicates that'the upper end of .the line of contact between the door and the strip is to the right of what it is in the lower end of the door, thereby producing a slight'wedging action between the door and the strips .as the door descends to closing position. v r In the form shown in Figure 5 the door has no notch in one corner of each of its lateral edges. In this form the strip 10 abuts the edge of the door and cooperates with a molding to form a substantially air-tight closure between the door and adjacent wall structure. In theform shown in Figures 5 and 8 the air in passing from the outside to the inside of the building, between the door and the jamb of the door opening, must make one right-angular turn, whereas in the structure shown in Figure 3 two such turns are necessary. 7

In Figure 8 the air passes in between the molding and the side of the door, andthen between the end of the door and the strip 10. The struc- ,tural features of the forms shownj'in Figures 3 and 8 are the same with the exception that in Figure 3 the door has a notch therein to receive one edge of the strip 10, thereby forming a more complete seal.

.In Figure 10 another form is shown. In this "form the strip is indicated by the numeral 10,

and instead of being rigidly attached to the door jamb and to the brackets 12,is attached to have lateral movementwith relation to the edge of the door. Each strip 10a is between the wall adjacent the door opening and the brackets 12, and is supported therein by means of screws 16, which project. into the strip and through 'slots- 15 in the bracket 12. Each strip 10a is forced toward the door by means of a spring or springs 14, attachedto each bracket '7 adjacent its foot 8. This spring is shown in Figure 11, acting to hold the. strip 10a in the extreme righthand position against the door.

Figure 12 shows a form of the door in which there is embodied applicants improvements.

One edge of the door is notched and is engaged by a wedge-shaped strip so that as the door is closed it tends to wedge itself between oppositely disposed edge members. The other edge of the door is engaged by a resiliently supported strip so that as the door is lowered two instrumentalities operate upon the door to hold it in tight position so that it may have no lateral movement and no passageway is left for the entrance of air, and the like.

I desire to comprehend within my invention such modifications as may be embraced within my claims aridthe scope of my invention.

Having thus fully described my invention, what I claim as new and desire to secure by Letters Patent, isz' 1. In a door structure, in combination with a wall having a doorway therein and a trackway on each side of the doorway, an articulated closure movable along the trackways adapted to engage the wall to close the doorway, said closure having a notch on one side at each-edge, wedging means supported by thewall on one side. of the doorway engaging the closure in the notch, and

spring-pressed means on the other side of the doorway and engaging theclosure to form between the wall and the closure a tightfit;

' 2. In a door structure, in combination with a wall having a doorway therein and a trackway on each side of thedoorway, a closure. for said doorway guided by the trackway, wedging means adjacent one trackway to engage'said closure on oneedge, and spring-pressed means to engage -form a tight fit between the closure and the wall-when the doorway isclosed'.

4; In a door structure, in combination with a wall having adoorway therein and a trackway on each side of the doorway, brackets for supporting the trackways, a vertically-sliding closure for said doorway having rollers engaging the trackways, and sealing means'supported by the brackets between the trackways and the wall to engage the vertical edges of the closure to form a tight closing fit.

5. In a door structure, in combination with a wall having a doorway therein and a trackway on each side of the doorway, brackets for supporting the trackways attached to the wall, an articulated closure vertically slidable along the trackways and adapted to engage the wall to close the doorway, said closure having a notch on one side along each vertical edge, and sealing means supported by the brackets between the trackways and the wall to engage the vertical edges of said closure in said notches to form a wall having a doorway therein anda trackway on each side of the doorway, brackets for supporting the trackway, an articulated door for said doorway guided by the trackway, said door having a notch on one side along each vertical edge, sealing strips forming wedging means supported on said brackets between the trackway and the wall to engage opposite edges of said door in said notches, and yieldingly urged means tending to force the strips toward each other into the notches to form a tight fit between the closure and the Wall when the doorway is closed.

'7. In a door structure, in combination with a wall having a doorway therein and a trackway on each side of the doorway, brackets for supporting the trackways,a vertically-sliding closure for said doorway having rollers engaging the a. tight closing fit, said sealing means consisting of a yieldingly-urged movable strip on one side of the door and a rigidly mounted wedge on the other side, said rigid wedge being thinner at the a top than at the bottom.

EDWARD H. MCCLOUD. 

